Standard Ignition 4WD Switch P/N:TCA-47
Keep your four-wheel-drive engagement signaling correctly with the Standard Ignition 4WD Switch TCA-13, a Four Wheel Drive Actuator Switch that installs as a direct-fit replacement across GM full-size trucks and SUVs. It fits the 1999-2002 Chevrolet Silverado 1500, 1999-2002 Chevrolet Silverado 2500, 2000-2002 Chevrolet Tahoe, 2000-2002 Chevrolet Suburban 1500, 1999-2002 GMC Sierra 1500 and 2500, 2000-2002 GMC Yukon and Yukon XL 1500, plus the 2002 Cadillac Escalade and Escalade EXT — see the Buyer's Guide tab for the complete application list including the HD and 3500 variants.
As a global manufacturer of original equipment ignition products, Standard Ignition maintains quality control throughout the manufacturing process. If a failed 4WD actuator switch is the cause of your engagement or indicator trouble, this replaces it.
Interchange: FWD34 · SW4506 · 15709327 · 19168767
This part cross-references / interchanges with the following part numbers:
What is the Standard Ignition TCA-13?
It is a Four Wheel Drive Actuator Switch (also written TCA13) that serves as a direct-fit replacement for the listed GM trucks and SUVs.
Which vehicles does this switch fit?
It fits applications such as the 1999-2002 Chevrolet Silverado 1500/2500, 2000-2002 Tahoe, GMC Sierra and Yukon, and 2002 Cadillac Escalade. See the Buyer's Guide tab for the full list.
What numbers does the TCA-13 interchange with?
It replaces FWD34, SW4506, 15709327, and 19168767. Matching one of these numbers helps confirm you have the right part.
How is this switch built?
It uses copper alloy conductors for strong electrical conductivity with low resistive losses, and a robust design with high-grade materials.
Is the TCA-13 tested before shipping?
Yes. Standard Ignition states each unit is 100% tested to verify both mechanical and electrical switching performance.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.